Cheap leads can be an expensive strategy

A low cost per lead is attractive because it makes acquisition look efficient. But a lead is only the beginning of a commercial process. If the enquiries are duplicates, unserviceable requests or people the business cannot help, the low price can conceal a costly distraction.

The useful question is how much qualified demand the spend creates, and what happens to that demand afterwards. Answering it requires cooperation between the person running the ads and the team receiving the enquiries.

Agree what qualified means

Define qualification using facts that matter to the business: the requested service, genuine need, serviceable location, appropriate timing or another agreed requirement. Avoid changing the definition whenever results become inconvenient.

Record the stages consistently. An unanswered lead is not automatically a poor lead. A good enquiry can fail because the business responds too slowly, has no appointment capacity or sends an unclear proposal. Keep acquisition quality and sales-process performance visible as separate questions.

Compare the same outcome

Consider a fictional example. Two campaigns each spend NZ$1,000. Campaign A generates 50 enquiries, of which five qualify. Campaign B generates 20 enquiries, of which eight qualify. A has the lower raw enquiry cost: NZ$20 versus NZ$50. B has the lower qualified-enquiry cost: NZ$125 versus NZ$200.

Those numbers do not prove B should receive the whole budget. The qualified enquiries may differ in value, the sample is small, and customer outcomes may still be immature. They show why the raw lead metric alone is insufficient. Compare compatible periods and definitions, then follow the next stage.

Improve feedback before changing the optimisation goal

Build a dependable connection between an enquiry and its downstream outcome. Check duplicate handling, identity matching, permissions, timestamps and coverage. Missing records can bias the picture if one campaign is easier to match than another.

Moving optimisation towards a lower-funnel event should be a planned transition. A meaningful event that arrives too inconsistently may be a weak operating signal. Keep an observation period, verify the data and define the conditions for changing the campaign’s goals. Google describes the relationship between actions and selected goals in its conversion goals documentation.

Give value a defensible meaning

If you assign different values to outcomes, explain their basis. An estimated value is an assumption to review; it is not observed revenue. Do not use an optimistic lifetime-value figure to justify unlimited acquisition spending.

Start with a small reconciliation exercise: trace a recent, mature cohort from enquiry to qualification and customer. Identify where information is lost. That gives the next campaign decision a stronger foundation than another report celebrating cheap leads.

Atlas reading: S02 — Qualified outcomes and economic value; Business Model Playbooks; Change Register.